Variables are the most important quantities in science, and they are indispensable. The corresponding variables are constants, but they all have a name called constants. There are so many variables that are too numerous to count. So, I won't list them all. And there are not many constants. Gravitational acceleration does not have the title of constant, but it is. Of course, this refers to the average. In fact, there are slight differences in gravitational acceleration from place to place. Constants don't necessarily exist in formulas, but variables do.

Regarding the direction of the variable, both vectors and vectors can be described. In mathematics, it's vectors. In physics, it's vectors. Acceleration is a vector, but what about displacement? The displacement should be directionless, right? However, we know that man has a purpose. Man must be going from one place to another, and there is no possibility of reversal. Therefore, the displacement should be a vector. However, displacement has no direction in physics, as physicists think more about free objects than people in society.

We know that vectors usually have only one direction, but are there any objects that have two directions? Quantum delay experiments say that a negative photon can pass through two lines at the same time, which means that the speed of the photon is likely to be a vector in two directions. This means that a certain variable of yin may have multiple directions, and like photons, there is also self-interference.

Okay, now it's your moment. Mizukawa said.

Is inertia a measure of breadth or intensity? Inertia, as the name suggests, is the quantity formed by inertia. The inertia of an object should be fixed and cannot be added. And the breadth measure is what needs to be added, so it is not a breadth measure. What is left is the quantity of intensity, so the moment of inertia can only be the quantity of intensity.

The molar quantity, also known as the quantity of matter, indicates a certain property of an object. The partial molar amount is the ratio of the quantity of two substances, so it is related to the molar amount. When there is only one object, the molar quantity is a partial molar quantity. Du said.

Are phasors and vectors similar? Actually, they are different. A vector represents a quantity with a direction, and a phasor represents the phase in which the object is located. The three states of an object can be regarded as three different phases, i.e., solid, liquid, and gaseous phases. Imaginary numbers, as a blooming wonder in mathematics, are really confusing. However, it is surprising when combined with phasor. If it is combined with points, I am afraid it will be even more special. Inductive reactance is a term, and I suddenly thought of impedance and acoustic reactance. As you can see from the name, it should be related to resistance. In the formula, the inductive reactance and phasor are linked.

And the phasor has a vector, which can be said to take this coincidence to the extreme.

Although covariates may sound repulsive, they are actually very simple. To say it, to say it is to say the independent variable. The narrow independent variable refers to the researcher's target variable, while the broad independent variable certainly includes covariates. In generalized covariates, except for the narrow independent variables, what remains are covariates. Six said.

Tensors are divided into incremental tensors, covariant tensors, and mixed tensors. As can be seen from the word rhesion, it is related to recursive sequences. When solving a recursive tensor, the summation formula of the recursive series must be used, and the summation is an important part of the integral. Therefore, we can see from the ramp that this kind of variable is not simple. The word covariant in our covariate is implicitly secondary, and the covariant tensor here naturally does not mean that. As for what it means, let's find out for ourselves! In addition to this, there are curvature tensors and metric tensors. The curvature tensor is related to curves, and perhaps to surfaces. Measure is a topological term, and measure space is a topological space. It has a probability metric space and a fuzzy metric space, respectively. Any of them are a headache. Probabilities are not complicated, but probability density involves integrals. Ambiguity is a linguistic term that describes the clarity of the meaning of a sentence. Or rather, the degree of uncertainty of the meaning of the language expression.

Both quasi-measures and metrics are topology-related. A quasi-measure, like a quasiparticle, is a sub-level variable.

The name pseudo-metric sounds like an attack on people who don't understand topology, but it's actually a kind of topological variable that is the same as a pseudo-metric or metric. It has to do with semi-norms. Half words appear a lot in mathematics. Such as semi-group, half-ring and so on. Margarita said.